You don't bother to defrag a Linux filesystem. Like most Unixes, Linux partitions don't get defragmentation problems. There is a permanent fragmentation which is quite small (varies between OS's but might be about 0.2% or so) and an algorithm that keeps it neat and tidy.
Some Unixes (and I think Linux is in this category) vary the allocation algorithm according to how full the disk is: on a fairly empty disk it's optimised for speed and on a fairly full (~95%) disk it optimises for space. So full filesystems run slower. The rules will vary for each filesystem, so EXT2 will be different to EXT3, XFS, ReiserFS, etc. Cheers, Jill. -- Jill Rowling, System Administrator Eng. Systems Dept, Aristocrat Technologies Australia Level 2, 55 Mentmore Ave Rosebery NSW 2018 Phone: (02) 9697-4484 Fax: (02) 9663-1412 Email: [EMAIL PROTECTED] -----Original Message----- From: Voytek Eymont [mailto:[EMAIL PROTECTED]] Sent: Wednesday, 9 October 2002 20:02 To: [EMAIL PROTECTED] Subject: defrag ? was Re: [SLUG] CDRW problem ** Reply to note from James Gregory <[EMAIL PROTECTED]> 09 Oct 2002 01:56:45 +1000 > partitions. I spent about two days messing around with defrag on a what does one use to assess ? and, defrag ? Linux ext3 hd ? ---------------------- CONFIDENTIALITY NOTICE ---------------------- This email is intended only to be read or used by the addressee. The information contained in this e-mail message may be confidential information. If you are not the intended recipient, any use, interference with, distribution, disclosure or copying of this material is unauthorised and prohibited. Confidentiality attached to this communication is not waived or lost by reason of the mistaken delivery to you. If you have received this message in error, please delete it and notify us by return e-mail or telephone Aristocrat Technologies Australia Pty Limited on +61 2 9413 6300. -- SLUG - Sydney Linux User's Group - http://slug.org.au/ More Info: http://lists.slug.org.au/listinfo/slug
